CN219626769U - Battery cover plate, battery and battery pack - Google Patents

Abstract

The utility model relates to the technical field of batteries, in particular to a battery cover plate, a battery and a battery pack. The battery cover plate in group battery and the battery includes the apron main part, first connection structure and second connection structure, set up notes liquid hole in the apron main part, feed liquor hole and play liquid hole, electrolyte can be followed notes liquid hole and injected into the battery inside and accomplish the equipment of battery, electrolyte can be followed the feed liquor hole and injected and accomplish the battery inside that needs extra supplementary electrolyte after the equipment, electrolyte can also be followed the liquid hole and follow the inside discharge of battery that needs to remove electrolyte, first connection structure's both ends link to each other with feed liquor hole and stock solution device respectively, first connection structure can control the switch-on and the wall of stock solution device and feed liquor hole, second connection structure's both ends link to each other with play liquid hole and evacuating device respectively, second connection structure can control evacuating device with the switch-on and the wall of play liquid hole realizes the effect to the inside supplementary electrolyte of battery, and simple structure, convenient operation.

Description

Battery cover plate, battery and battery pack

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery cover plate, a battery and a battery pack.

Background

With the rapid development of new energy automobiles, the application of batteries is becoming more and more widespread. The battery generally includes a battery housing, a battery cover plate, an electrolyte, and a cell assembly disposed in the battery housing along an opening of the battery housing, the electrolyte filled between the battery housing and the cell assembly, the battery cover plate sealing the opening of the battery housing in which the cell assembly is housed. However, during long-term operation of the battery, the electrolyte can undergo electrochemical reaction to reduce, and active substances in the battery cell assembly cannot be sufficiently supplemented by the electrolyte, so that the capacity attenuation of the battery cell assembly is accelerated, and the service life of the power battery is affected. Therefore, it is necessary to timely replenish the electrolyte into the battery.

In the prior art, taking CN217239710U as an example, the air suction pipe and the liquid injection pipe are connected to the battery body, the interior of the battery body is firstly vacuumized by using the liquid injection pipe and the air suction pipe, and then electrolyte is input into the interior of the battery body, so that the effect of injecting the electrolyte into the battery is achieved. The battery body is provided with a double-layer through hole, a limiting seat, a rotating plate, a clamping plate, a third positioning hole, a pipe joint and other structures so as to improve the sealing and fixing effects of the exhaust pipe, the liquid injection pipe and the battery body. The arrangement mode ensures the sealing and fixing effects of the exhaust pipe, the liquid injection pipe and the battery body, but has the advantages of complex structure, difficult processing, complex operation and low working efficiency.

Therefore, there is a need for a battery cover plate, a battery and a battery pack to solve the above problems.

Disclosure of Invention

The utility model aims to provide a battery cover plate, a battery and a battery pack so as to realize the supplement of electrolyte in the battery, and the battery cover plate is simple in structure, convenient to operate and high in working efficiency.

To achieve the purpose, the utility model adopts the following technical scheme:

a battery cover plate comprising:

the electrolyte can be injected into the battery along the liquid injection hole and is assembled, the electrolyte can be injected into the battery along the liquid injection hole and is required to be additionally supplemented after the assembly is completed, and the electrolyte can be discharged from the battery along the liquid outlet hole;

the liquid storage device comprises a liquid inlet, a liquid storage device, a liquid outlet, a liquid storage device, a first connecting structure and a second connecting structure, wherein the two ends of the first connecting structure are respectively connected with the liquid inlet and the liquid storage device, the first connecting structure can control the liquid storage device to be conducted and separated from the liquid inlet, the two ends of the second connecting structure are respectively connected with the liquid outlet and the vacuumizing device, and the second connecting structure can control the vacuumizing device to be conducted and separated from the liquid outlet.

Preferably, a blocking member is disposed in the first connection structure, the first connection structure can be provided with a liquid inlet channel, the liquid inlet channel is communicated with the liquid inlet hole, and the blocking member moves relative to the liquid inlet channel and blocks the liquid inlet channel.

Preferably, a controller is further arranged in the first connecting structure, the controller is in signal connection with the controller, and the controller can control the blocking piece to move relative to the liquid inlet channel.

Preferably, the liquid inlet channel includes:

one end of the first connecting part is communicated with the liquid inlet hole; and

the second connecting part is communicated with the first connecting part, the aperture of the second connecting part is larger than that of the first connecting part, and the electrolyte is sequentially injected into the battery through the second connecting part, the first connecting part and the liquid inlet.

As a preferable scheme, the second connecting structure is provided with a liquid outlet channel, a weak part is arranged in the second connecting structure, the weak part is arranged in the liquid outlet channel and seals the liquid outlet channel, and the rupture pressure threshold value of the weak part is smaller than that of the cover plate main body and the second connecting structure.

As a preferable scheme, a first mounting groove and a second mounting groove are formed in the cover plate main body, the liquid inlet is formed in the center of the first mounting groove, the first connecting structure is fixedly connected with the first mounting groove in a butt joint mode, the liquid outlet is formed in the center of the second mounting groove, and the second connecting structure is fixedly connected with the second mounting groove in a butt joint mode.

Preferably, the battery cover plate further comprises:

and the bonding structure is clamped between the first connecting structure and the first mounting groove and between the second connecting structure and the second mounting groove, and can bond and fix the first connecting structure with the first mounting groove and the second connecting structure with the second mounting groove.

Preferably, the first connecting structure is in interference fit with the first mounting groove, and the second connecting structure is in interference fit with the second mounting groove.

The battery comprises a battery shell, a battery cell assembly, electrolyte and the battery cover plate, wherein the battery cell assembly is placed in the battery shell along the opening of the battery shell, the electrolyte is filled between the battery shell and the battery cell assembly, and the battery cover plate seals the opening of the battery shell in which the battery cell assembly is accommodated.

A battery pack comprising a plurality of cells as described above, a plurality of said cells being connected in parallel and/or in series with each other.

The utility model has the beneficial effects that:

according to the battery cover plate provided by the utility model, the two ends of the first connecting structure are respectively connected with the liquid inlet and the liquid storage device on the cover plate main body, the first connecting structure controls the conduction and the separation of the liquid storage device and the liquid inlet, the two ends of the second connecting structure are respectively connected with the liquid outlet and the vacuumizing device on the cover plate main body, and the second connecting structure controls the conduction and the separation of the vacuumizing device and the liquid outlet, so that the effect of supplementing electrolyte into the battery is achieved, and other limiting and/or positioning structures are not required to be additionally arranged.

The utility model also provides a battery, and by applying the battery cover plate, the effect of supplementing electrolyte to the inside of the battery is achieved, and other limiting and/or positioning structures are not required to be additionally arranged.

The utility model also provides a battery pack, and by applying the battery, the effect of supplementing electrolyte to the inside of the battery is achieved, and other limiting and/or positioning structures are not required to be additionally arranged.

Drawings

Fig. 1 is a schematic view of a battery according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of a battery cover plate according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of section A-A of FIG. 2.

In the figure:

1000. a battery;

100. a battery cover plate; 110. a cover plate main body; 120. a first connection structure; 121. a blocking member; 122. a controller; 123. a liquid inlet channel; 1231. a first connection portion; 1232. a second connecting portion; 130. a second connection structure; 131. a weak portion; 132. a liquid outlet channel; 140. an explosion-proof valve; 150. a positive electrode post hole; 151. a positive pole butt joint groove; 160. a negative electrode post hole; 161. a negative pole butt joint groove; 170. a first mounting groove; 180. a second mounting groove;

200. and a battery case.

Detailed Description

In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the utility model more clear, the technical scheme of the utility model is further described below by a specific embodiment in combination with the attached drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The embodiment of the utility model also provides the battery 1000. As shown in fig. 1, the battery 1000 includes a battery case 200, a battery cell assembly placed in the battery case 200 along an opening of the battery case 200, an electrolyte filled between the battery case 200 and the battery cell assembly, and a battery cap plate 100 sealing the opening of the battery case 200 accommodating the battery cell assembly.

The utility model also provides a battery pack. The battery pack includes a plurality of batteries 1000 connected in parallel and/or in series to adjust the output voltage and the output current of the battery pack according to actual requirements.

During use of the battery 1000, the electrolyte is reduced due to the electrochemical reaction, and the electrolyte needs to be replenished into the battery 1000 in order to ensure the normal operation of the battery 1000. In the prior art, taking CN217239710U as an example, the air suction pipe and the liquid injection pipe are connected to the battery body, the interior of the battery body is firstly vacuumized by using the liquid injection pipe and the air suction pipe, and then electrolyte is input into the interior of the battery body, so that the effect of injecting the electrolyte into the battery is achieved. The battery body is provided with a double-layer through hole, a limiting seat, a rotating plate, a clamping plate, a third positioning hole, a pipe joint and other structures so as to improve the sealing and fixing effects of the exhaust pipe, the liquid injection pipe and the battery body. The arrangement mode ensures the sealing and fixing effects of the exhaust pipe, the liquid injection pipe and the battery body, but has the advantages of complex structure, difficult processing, complex operation and low working efficiency.

In order to solve the above-described problems, as shown in fig. 1 and 2, an embodiment of the present utility model provides a battery cover plate 100. The battery cover plate 100 comprises a cover plate main body 110, a first connecting structure 120 and a second connecting structure 130, wherein a liquid injection hole, a liquid inlet hole and a liquid outlet hole are formed in the cover plate main body 110, electrolyte can be injected into the battery 1000 along the liquid injection hole and is assembled into the battery 1000, the electrolyte can be injected into the battery 1000 along the liquid inlet hole, the electrolyte needs to be additionally supplemented after the assembly is completed, the electrolyte can be discharged from the battery 1000 along the liquid outlet hole, the electrolyte needs to be removed, two ends of the first connecting structure 120 are respectively connected with the liquid inlet hole and the liquid storage device, the first connecting structure 120 can control the liquid storage device to be connected with the liquid inlet hole and separated, two ends of the second connecting structure 130 are respectively connected with the liquid outlet hole and the vacuumizing device, and the second connecting structure 130 can control the vacuumizing device to be connected with the liquid outlet hole and separated. The battery cover plate 100 is characterized in that two ends of a first connecting structure 120 are respectively connected with a liquid inlet and a liquid storage device on a cover plate main body 110, the first connecting structure 120 controls the liquid storage device to be connected with and disconnected from the liquid inlet, two ends of a second connecting structure 130 are respectively connected with a liquid outlet and a vacuumizing device on the cover plate main body 110, the second connecting structure 130 controls the vacuumizing device to be connected with and disconnected from the liquid outlet, the effect of supplementing electrolyte to the inside of the battery 1000 is achieved, and other limiting and/or positioning structures are not required to be additionally arranged.

It should be noted that, in the present embodiment, the battery cover plate 100 is further provided with a positive electrode post hole 150 and a negative electrode post hole 160, the positive electrode post hole 150 provides a receiving space for a positive electrode post of the battery cell assembly, and the negative electrode post hole 160 provides a receiving space for a negative electrode post of the battery cell assembly. In addition, in this embodiment, a plurality of positive electrode post docking slots 151 are further spaced apart on the inner side wall of the positive electrode post hole 150, a plurality of negative electrode post docking slots 161 are further spaced apart on the inner side wall of the negative electrode post hole 160, a plurality of positive electrode post docking protrusions are further spaced apart on the outer side wall of the positive electrode post, each positive electrode post docking protrusion is correspondingly arranged with one positive electrode post docking slot 151 so as to fix the positive electrode post with the positive electrode post hole 150, a plurality of negative electrode post docking protrusions are further spaced apart on the outer side wall of the negative electrode post, and each negative electrode post docking protrusion is correspondingly arranged with one negative electrode post docking slot 161 so as to fix the negative electrode post with the negative electrode post hole 160, thereby fixing the battery core assembly with the battery cover plate 100.

In this embodiment, in order to further simplify the structure of the battery cover plate 100, the liquid injection hole and the liquid inlet hole are the same through hole. The battery cover plate 100 is also provided with the explosion-proof valve 140, the explosion-proof valve 140 is positioned at the center of the battery cover plate 100, the explosion pressure threshold of the explosion-proof valve 140 is lower than that of the battery 1000, and the liquid inlet and the liquid outlet are respectively positioned at two sides of the explosion-proof valve 140, so that the overall aesthetic property of the battery cover plate 100 is improved. When the internal pressure of the battery 1000 is continuously increased, the internal pressure of the battery 1000 reaches the explosion pressure threshold of the explosion-proof valve 140, and the explosion-proof valve 140 is opened first, so that the internal pressure of the battery 1000 is released, and explosion of the battery 1000 is prevented. Specifically, the explosion-proof valve 140 includes an explosion-proof film and a protection sheet, the protection sheet is disposed over the explosion-proof film, and a sheet region is disposed on the explosion-proof film, and an explosion pressure threshold of the sheet region is smaller than an explosion pressure threshold of the battery case 200. When the flake region explodes, the protection piece can collect the explosion piece of flake region together, avoids explosion piece atress splash.

Further, as shown in fig. 2 and 3, a blocking member 121 is disposed in the first connecting structure 120, the first connecting structure 120 can be provided with a liquid inlet channel 123, the liquid inlet channel 123 is communicated with the liquid inlet hole, and the blocking member 121 moves relative to the liquid inlet channel 123 and blocks the liquid inlet channel 123. By arranging the blocking piece 121 to move relative to the liquid inlet channel 123, the connection and the disconnection between the liquid inlet hole and the liquid inlet channel 123 can be switched, and the structure is simple and the adjustment is convenient. It should be noted that, the blocking member 121 is a telescopic column, and the telescopic column has a simple structure and is convenient to move. In other embodiments, the blocking member 121 may be a ball lock structure disposed in the liquid inlet channel 123, and the effect of switching between the liquid inlet hole and the liquid inlet channel 123 is achieved by opening and closing the ball lock structure, which is not particularly limited in this embodiment.

In order to facilitate controlling the movement of the blocking member 121, a controller 122 is further disposed in the first connecting structure 120, the controller 122 is in signal connection with the blocking member 121, and the controller 122 can control the blocking member 121 to move relative to the liquid inlet channel 123. The controller 122 is arranged to control the blocking piece 121 to move relative to the liquid inlet channel 123, so that the connection and the disconnection between the liquid inlet hole and the liquid inlet channel 123 are controlled, the control is simple, and the degree of automation is high.

Specifically, in the present embodiment, the blocking member 121 initially separates the liquid inlet channel 123 from the liquid inlet hole to meet the sealing requirement of the battery 1000. When the number of cycles of charging and discharging the battery 1000 reaches 300, the controller 122 controls the blocking member 121 to move relative to the liquid inlet channel 123 until the blocking member 121 no longer blocks the liquid inlet channel 123, so that the liquid inlet channel 123 is communicated with the liquid inlet hole, and then the liquid storage device injects electrolyte into the battery 1000 along the liquid inlet channel 123 and the liquid inlet hole. In this embodiment, the controller 122 is a BMS (BATTERY MANAGEMENT SYSTEM) that can monitor the state of the BATTERY 1000 and protect the BATTERY 1000. In other embodiments, the controller 122 may be other devices, and the controller 122 may control the movement of the blocking member 121 after the battery 1000 completes 100, 200 or 400 charge/discharge cycles, which is not particularly limited in this embodiment. The specific structure and working principle of the BMS belong to the prior art, and a detailed description thereof is omitted.

Further, the liquid inlet channel 123 includes a first connecting portion 1231 and a second connecting portion 1232, wherein one end of the first connecting portion 1231 is connected to the liquid inlet, the second connecting portion 1232 is connected to the first connecting portion 1231, the aperture of the second connecting portion 1232 is larger than that of the first connecting portion 1231, and the electrolyte is sequentially injected into the battery 1000 through the second connecting portion 1232, the first connecting portion 1231 and the liquid inlet. By arranging the liquid inlet passage 123 as the stepped hole composed of the first connecting part 1231 and the second connecting part 1232, injection of the electrolyte can be facilitated, leakage of the electrolyte when the electrolyte is injected into the battery 1000 along the liquid inlet passage 123 is avoided, and protection of the cover plate main body 110 and the first connecting structure 120 is improved.

Preferably, the second connecting structure 130 is provided with a liquid outlet channel 132, the second connecting structure 130 is provided with a weak portion 131 therein, the weak portion 131 is disposed in the liquid outlet channel 132 and seals the liquid outlet channel 132, and a rupture pressure threshold of the weak portion 131 is smaller than a rupture pressure threshold of the cover main body 110 and the second connecting structure 130.

When the vacuumizing device draws electrolyte from the interior of the battery 1000 or vacuumizes the interior of the battery 1000, the weak portion 131 may be broken first because the breaking pressure threshold of the weak portion 131 is smaller than the breaking pressure threshold of the cover plate main body 110 and the second connecting structure 130, and then the vacuumizing device can draw electrolyte and/or air from the interior of the battery 1000 along the liquid outlet hole and the liquid outlet channel. After the operation of drawing out or vacuumizing the electrolyte is completed, the liquid outlet pipe 132 is plugged by using a rubber plug, so that the sealing effect of the battery 1000 is ensured.

It should be noted that, in other embodiments, the liquid outlet controller and the liquid outlet blocking member may be disposed in the second connection structure 130, and the liquid outlet controller controls the liquid outlet blocking member to move relative to the liquid outlet channel 132 to achieve the effect of switching between the liquid outlet hole and the vacuum pumping device, and the embodiment is not limited specifically.

The specific installation of the first and second connection structures 120 and 130 will be described with reference to fig. 2. The cover plate main body 110 is provided with a first mounting groove 170 and a second mounting groove 180, the liquid inlet is arranged at the center of the first mounting groove 170, the first connecting structure 120 is fixedly connected with the first mounting groove 170 in a butt joint mode, the liquid outlet is arranged at the center of the second mounting groove 180, and the second connecting structure 130 is fixedly connected with the second mounting groove 180 in a butt joint mode. By arranging the first mounting groove 170 to be in butt joint with the first connecting structure 120 and arranging the second mounting groove 180 to be in butt joint with the second connecting structure 130, positioning and guiding can be provided for the butt joint between the first connecting structure 120 and the second connecting structure 130 and the cover plate main body 110, and the efficiency of the butt joint is improved.

Further, the battery cover plate 100 further includes an adhesive structure (not shown) interposed between the first connection structure 120 and the first mounting groove 170 and between the second connection structure 130 and the second mounting groove 180, the adhesive structure being capable of adhesively securing the first connection structure 120 to the first mounting groove 170 and the second connection structure 130 to the second mounting groove 180, the adhesive being convenient, and the first connection structure 120 being easily removed from the adhesive structure when the first connection structure 120 is required to be separated from the first mounting groove 170. In this embodiment, the adhesive structure is adhesive glue, and the adhesive glue is sandwiched between the first connecting structure 120 and the first mounting groove 170 and between the second connecting structure 130 and the second mounting groove 180, so that the operation is convenient and the adhesion is stable. In other embodiments, the bonding structure may be an adhesive, and the embodiment is not particularly limited.

Furthermore, in other embodiments, the first connection structure 120 and the first mounting groove 170 may be interference fit, and the second connection structure 130 and the second mounting groove 180 may be interference fit. Specifically, the first connection structure 120 is fixedly inserted into the first mounting groove 170, the second connection structure 130 is fixedly inserted into the second mounting groove 180, the connection force between the first connection structure 120 and the first mounting groove 170 and the connection force between the second connection structure 130 and the second mounting groove 180 are relatively small, and a worker can manually insert and fix the first connection structure 120 into the first mounting groove 170 or insert and fix the second connection structure 130 into the second mounting groove 180. When the first connection structure 120 needs to be isolated from the first mounting groove 170, the first connection structure 120 may be manually pulled out of the first mounting groove 170.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. Battery cover plate, its characterized in that includes:

the electrolyte can be injected into the battery along the liquid injection hole and is assembled in the battery, the electrolyte can be injected into the battery along the liquid injection hole and is required to be additionally supplemented after the assembly is completed, and the electrolyte can be discharged from the battery along the liquid outlet hole;

the liquid storage device comprises a first connecting structure (120) and a second connecting structure (130), wherein two ends of the first connecting structure (120) are respectively connected with the liquid inlet and the liquid storage device, the first connecting structure (120) can control the liquid storage device to be conducted and separated from the liquid inlet, two ends of the second connecting structure (130) are respectively connected with the liquid outlet and the vacuumizing device, and the second connecting structure (130) can control the vacuumizing device to be conducted and separated from the liquid outlet.

2. The battery cover plate according to claim 1, wherein a blocking member (121) is disposed in the first connection structure (120), the first connection structure (120) is capable of being provided with a liquid inlet channel (123), the liquid inlet channel (123) is in communication with the liquid inlet hole, and the blocking member (121) moves relative to the liquid inlet channel (123) and blocks the liquid inlet channel (123).

3. The battery cover plate according to claim 2, wherein a controller (122) is further arranged in the first connecting structure (120), the controller (122) is in signal connection with the controller, and the controller (122) can control the blocking piece (121) to move relative to the liquid inlet channel (123).

4. The battery cover plate according to claim 2, wherein the liquid inlet channel (123) comprises:

the first connecting part (1231), one end of the first connecting part (1231) is communicated with the liquid inlet; and

the second connecting part (1232) is communicated with the first connecting part (1231), the aperture of the second connecting part (1232) is larger than that of the first connecting part (1231), and the electrolyte sequentially passes through the second connecting part (1232), the first connecting part (1231) and the liquid inlet hole to be injected into the battery.

5. The battery cover plate according to any one of claims 1 to 4, wherein the second connection structure (130) is provided with a liquid outlet channel (132), a weak portion (131) is provided in the second connection structure (130), the weak portion (131) is provided in the liquid outlet channel (132) and seals the liquid outlet channel (132), and a rupture pressure threshold of the weak portion (131) is smaller than a rupture pressure threshold of the cover plate main body (110) and the second connection structure (130).

6. The battery cover plate according to any one of claims 1 to 4, wherein the cover plate main body (110) is provided with a first mounting groove (170) and a second mounting groove (180), the liquid inlet is arranged at the center of the first mounting groove (170), the first connecting structure (120) is in butt joint with the first mounting groove (170), the liquid outlet is arranged at the center of the second mounting groove (180), and the second connecting structure (130) is in butt joint with the second mounting groove (180).

7. The battery cover plate of claim 6, further comprising:

and the bonding structure is clamped between the first connecting structure (120) and the first mounting groove (170) and between the second connecting structure (130) and the second mounting groove (180), and can bond and fix the first connecting structure (120) and the first mounting groove (170) and the second connecting structure (130) and the second mounting groove (180).

8. The battery cover of claim 6, wherein the first connection structure (120) is interference fit with the first mounting groove (170) and the second connection structure (130) is interference fit with the second mounting groove (180).

9. Battery, characterized in that it comprises a battery case (200), a battery cell assembly, an electrolyte, and a battery cover plate according to any one of claims 1 to 8, wherein the battery cell assembly is placed in the battery case (200) along the opening of the battery case (200), the electrolyte is filled between the battery case (200) and the battery cell assembly, and the battery cover plate seals the opening of the battery case (200) in which the battery cell assembly is accommodated.

10. A battery comprising a plurality of cells according to claim 9, wherein a plurality of said cells are connected in parallel and/or in series with each other.